Simple set-up menu.
Current, pulse or set point outputs.
High temp. Transducers-option.
Energy meter version.
The Ultraflo 2000 is a “Transit Time” ultrasonic flowmeter
designed to work with clamp-on transducers, enabling
accurate measurement of liquid flowing within a closed pipe,
without the need for any mechanical parts to be inserted
through the pipe wall and into the flow system. The Ultraflo
2000 is therefore simple to install requiring no shut downtime,
with the added advantage of no pressure drop or contact with
the process liquid.
The Ultraflo 2000 has been designed for permanent metering
on a pipe range of 13mm up to 5000mm and is supplied with
transducers and mounting hardware to suit the application.
The Ultraflo displays volumetric flow rate in a wide range of
units, linear flow rate in metres and feet per second with total
volume flow displayed up to a maximum of 12 digits.
Additional facilities offered by the Ultraflo are a 4-20 mA flow
proportional output, Pulse output or Set point, Negative flow
indication and Display/Output variable damping, helping the
Ultraflo cope with poor and unstable flow conditions. All
outputs are configured to interface with different types of data
collection systems including Building Management Systems.
An optionally available version, the Ultraflo 2000HM, can be
used to meter Heat or Energy. By using the ultrasonic
transducers to measure the flow and two PT100 temperature
sensors to measure the flow and return temperature, the
amount of Heat/Energy used can be displayed as kW, kCal/hr,
MJ/min and MJ/sec. Flow rate, Total flow and Temperature
differential are also displayed. The Heatmeter version has two
4-20mA remote outputs to monitor these measurements as
well as pulse output to record Total flow or Energy.
The instrument is able to work on a wide variety of pipe sizes
from 13mm up to 5000mm, simply by selecting the correct
transducers and attaching them to the outside of the pipewall
using the mounting hardware provided.
The setup operation is easily accomplished on the push button
keypad with the user only requiring to know the pipe
dimensions and the type of pipe wall material. All other
application parameters can be measured by the instrument
THE Ultraflo 2000 electronics are housed in an ABS, IP67
enclosure. The complete system including transducers have
been CE approved. Programming of the Flowmeter and
Heatmeter is carried out using the keypad incorporated in the
housing. Simple set up instructions are displayed after entering
data on pipe size, pipe material and application data (liquid
type and temperature). Follow the instructions on the display,
connect the transducers as instructed and mount on the pipe
at the specified separation distance. The instrument is now
ready to read flow. All application and calibration data is
password protected to prevent programmed data being
changed inadvertently, whilst the clear front cover and the
backlit display protect the keypad and ensure that the
instrument is easy to read in poor lighting conditions.
FLOW MEASUREMENT PRINCIPLE
When ultrasound is transmitted between the two transducers
X and Y, the speed at which the sound travels through the
liquid is accelerated slightly by the velocity of the liquid in the
pipe. When ultrasound is transmitted in the opposite direction
the flow of the liquid causes the transmitted sound to
The subsequent time difference is directly proportional to the
flow velocity in the pipe. Having measured the flow velocity
and knowing the pipe cross-sectional area, the volumetric flow
can easily be calculated. Micronics engineers have developed
a measurement technique which has the ability to resolve
extremely small time differences down to 25 pico seconds (25
x10-12 seconds), therefore giving extremely good performance
on small pipes or in large pipes with low velocity flows.
Transducers are supplied according to the application
information given when placing an order. All transducers are
clamped to the outside of the pipe wall with the rugged
mounting hardware provided. Transducers are available to
operate on pipework from 13mm up to 5000mm and at
temperatures between -20°C and +200°C. The electronics are
connected to the transducers via coax cable which can be as
much as 200 metres long without affecting performance.
The Ultraflo 2000 will measure the flow of clean and dirty
liquids in full pipes with a velocity range of 0.02 m/sec to 12
m/sec. The flow range of the meter is dependent on the pipe
size and the liquid velocity, which determines the selection of
transducers that are supplied with each instrument. The
instrument can be reprogrammed to use different transducers
in other different modes in order to overcome signal strength
difficulties, ease installation problems or to re-adjust the flow
range of the instrument, should it be required.
The Heatmeter has been designed for general purpose energy
monitoring using clamp-on flow and temperature transducers.
The Heatmeter combines a flow measurement generated by
using the ultrasonic “Time of Flight” technique to measure
flow with the temperature differential input generated by a pair
of PT100 temperature transducers, the combined output
produces a measurement of heat or energy used. The
Heatmeter version gives two 4-20mA outputs that can be
used to monitor either the Flow, Energy or Temperature
Differential. The pulse output can be used to record Total Flow
or Total Energy.